Ruin-Tribe Ghost Sniper

Vigilance, Glory (Attacking doesn't cause this creature to tap. Whenever a creature dealt
damage by this creature this turn dies, exile it
and put a +1/+1 counter on this creature.)
{x},{t}: Ruin-Tribe Ghost Sniper deals X
damage divided as you choose among any number of target blue or black creatures
your opponents' control. Spend only green
mana for X.